IUBMB Enzyme Nomenclature


Accepted name: 3-O-α-D-glucosyl-L-rhamnose phosphorylase

Reaction: 3-O-α-D-glucopyranosyl-L-rhamnopyranose + phosphate = L-rhamnopyranose + β-D-glucose 1-phosphate

Other name(s): cphy1019 (gene name)

Systematic name: 3-O-α-D-glucopyranosyl-L-rhamnopyranose:phosphate β-D-glucosyltransferase

Comments: The enzyme does not phosphorylate α,α-trehalose, kojibiose, nigerose, or maltose. In the reverse phosphorolysis reaction the enzyme is specific for L-rhamnose as acceptor and β-D-glucose 1-phosphate as donor.

Links to other databases: BRENDA, EXPASY, KEGG, Metacyc, CAS registry number:


1. Nihira, T., Nakai, H. and Kitaoka, M. 3-O-α-D-Glucopyranosyl-L-rhamnose phosphorylase from Clostridium phytofermentans. Carbohydr. Res. 350 (2012) 94-97. [PMID: 22277537]

[EC created 2012]

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